13,304 results match your criteria: "University of California--Irvine[Affiliation]"

Preserving the ability to vividly recall emotionally rich experiences contributes to quality of life in older adulthood. While prior works suggest that moderate-intensity physical activity (MPA) may bolster memory, it is unclear whether this extends to emotionally salient memories consolidated during sleep. In the current study, older adults (mean age = 72.

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Purpose: The impact of price transparency on patients' decisions to receive the recommended care is unclear. This study aimed to assess the utilization rate of hospital price estimator tools for outpatient imaging appointments, and the association between price estimator utilization and subsequent imaging completion.

Methods: In this retrospective, cross-sectional study, adult patients with scheduled outpatient radiology examinations between August 2022 and 2023 at a single tertiary academic health system were included.

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Purpose: There are no standardized chest binding guidelines available to health care providers serving transgender and nonbinary individuals, exacerbating the significant health disparities affecting this community. Our study aimed to demonstrate the need for further evidence-based investigations into the association between chest binder type and health outcomes.

Methods: For this cross-sectional observational study, a community-engaged online survey evaluating individuals' experiences with their current or most recent chest binder was distributed to LGBTQ+ community centers, online forums, and clinics from July to November 2021.

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Chronic myelomonocytic leukemia (CMML) is a myelodysplastic/myeloproliferative neoplasm characterized by peripheral blood monocytosis and bone marrow dysplasia. In approximately one-fourth of cases, CMML can demonstrate progression to acute myeloid leukemia (AML), referred to as AML ex CMML. We present a 58-year-old woman with a past medical history of idiopathic thrombocytopenic purpura (ITP) who demonstrated 24% bone marrow blasts on a repeat biopsy obtained two years after being diagnosed with CMML.

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Background: Methotrexate is an important component of curative therapy in childhood acute lymphoblastic leukemia (ALL), but the role of genetic variation influencing methotrexate clearance and transport in toxicity susceptibility in children with ALL is not well established. Therefore, we evaluated the association between suspected methotrexate pharmacogenomic variants and methotrexate-related neurotoxicity.

Methods: This study included children (aged 2-20 years) diagnosed with ALL (2005-2019) at six treatment centers in the southwest United States.

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Background: The 313-variant polygenic risk score (PRS) provides a promising tool for clinical breast cancer risk prediction. However, evaluation of the PRS across different European populations which could influence risk estimation has not been performed.

Methods: We explored the distribution of PRS across European populations using genotype data from 94,072 females without breast cancer diagnosis, of European-ancestry from 21 countries participating in the Breast Cancer Association Consortium (BCAC) and 223,316 females without breast cancer diagnosis from the UK Biobank.

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Background: Multidose iodinated contrast media (ICM) injectors have shown promise in reducing ICM waste. This study aims to evaluate the impact of patient volume on ICM waste reduction in multidose injectors.

Methods: CT studies performed over one-year period with a multidose injector at our emergency CT unit.

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Objective: Repositioning and fixation of the posterior septal angle (PSA) relative to the anterior nasal spine (ANS) is a well-known maneuver performed during rhinoplasty. Suture techniques through the periosteum along with transosseous drilling through the spine are the two most common fixation methods. We report on how nasal airway patency varies as a function of technique and patient demographic factors.

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Anthropogenic nitrogen (N) deposition is unequally distributed across space and time, with inputs to terrestrial ecosystems impacted by industry regulations and variations in human activity. Soil carbon (C) content normally controls the fraction of mineralized N that is nitrified (ƒ), affecting N bioavailability for plants and microbes. However, it is unknown whether N deposition has modified the relationships among soil C, net N mineralization, and net nitrification.

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Purpose: To characterize American Society of Ophthalmic Plastic and Reconstructive Surgery (ASOPRS) fellowship graduates' career paths and contributions to society missions, including trends across gender, time, and geography.

Methods: In this retrospective cohort study, ASOPRS fellowship graduates from 2000 to 2021 were stratified by demographics, time, and geography. Main outcomes were career paths and contributions to ASOPRS missions of advancing education, research, and quality of clinical practice.

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Background: Thrombotic microangiopathy (TMA) is a rare, life-threatening disorder characterized by microangiopathic hemolytic anemia, thrombocytopenia, and end-organ damage. Atypical hemolytic uremic syndrome (aHUS) is even less common, comprising less than 10% of hemolytic uremic syndrome (HUS) cases. aHUS in postpartum is associated with poor maternal outcomes, with the majority of cases resulting in end-stage renal disease.

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Plasma transfusion and hospital mortality in moderate-severe traumatic brain injury.

Injury

December 2024

Division of Acute Care Surgery, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA; Critical Illness, Brain Dysfunction, And Survivorship (CIBS) Center, Vanderbilt University Medical Center, Nashville, TN, USA; Surgical Service, Nashville VA Medical Center, Tennessee Valley Healthcare System, Nashville, TN, USA.

Background: Prior research suggests that plasma may improve outcomes in traumatic brain injury (TBI). We examined the association between plasma administration and mortality in moderate-severe TBI in a large retrospective cohort, hypothesizing plasma is associated with decreased mortality after accounting for confounding covariates.

Materials And Methods: Patients from the 2017-2020 Trauma Quality Improvement Program (TQIP) dataset ≥18 years with moderate-severe TBI were included.

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Near-infrared (NIR) emitters with high two-photon absorption (2PA) cross-sections are of interest to enable imaging in the tissue transparency windows. This study explores the potential of DNA-stabilized silver nanoclusters (Ag -DNAs) as water-soluble two-photon absorbers. We investigate 2PA of four different atomically precise Ag -DNA species with far-red to NIR emission and varying nanocluster and ligand compositions.

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Collapsin response mediator protein 2 (CRMP2) functions in the genesis and activity of neuronal connections in mammalian brain. We previously reported that a protein coincident with CRMP2 on 2D-gels undergoes marked accumulation of abnormal L-isoaspartyl sites in brain extracts of mice missing the repair enzyme, protein L-isoaspartyl methyltransferase (PIMT). To confirm and explore the significance of isoaspartyl damage in CRMP2, we expressed and purified recombinant mouse CRMP2 (rCRMP2).

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Adherence to preexposure prophylaxis (PrEP) is lower among high-risk populations, including youth experiencing homelessness (YEH). This study determined the feasibility of urine PrEP adherence biomarker testing and examined the barriers and facilitators to PrEP uptake and adherence among YEH. YEH were recruited from a randomized control trial conducted in a large urban setting in southern United States.

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Objectives: This study aimed to characterize the survival of patients with sebaceous carcinoma (SC) of the eyelids according to demographics and other variables.

Methods: Patients with SC of the eyelids from 2004 to 2017 were identified in the National Cancer Database. Demographic and clinical covariates were assessed.

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Mutations in KRAS G12C are among the more common oncogenic driver mutations in non-small cell lung cancer (NSCLC). In December 2022, the US Food and Drug Administration (FDA) granted accelerated approval to adagrasib, a small molecule covalent inhibitor of KRAS G12C, for the treatment of patients with locally advanced or metastatic KRAS G12C mutant NSCLC who received at least one prior systemic therapy based on promising results from phase 1 and 2 trials wherein adagrasib demonstrated a median PFS of 6.5 months.

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Introduction: The utility of pancreaticoduodenectomy (PD) for high-grade traumatic injuries remains unclear and data surrounding its use are limited. We hypothesized that PD does not result in improved outcomes when compared with non-PD surgical management of grade IV-V pancreaticoduodenal injuries.

Methods: This is a retrospective, multicenter analysis from 35 level 1 trauma centers from January 2010 to December 2020.

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Surface-enhanced Raman spectroscopy: a half-century historical perspective.

Chem Soc Rev

December 2024

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, School of Electronic Science and Engineering, College of Environment and Ecology, State Key Laboratory of Marine Environmental Science, Department of Physics, iChEM, IKKEM, Xiamen University, Xiamen 361005, China.

Surface-enhanced Raman spectroscopy (SERS) has evolved significantly over fifty years into a powerful analytical technique. This review aims to achieve five main goals. (1) Providing a comprehensive history of SERS's discovery, its experimental and theoretical foundations, its connections to advances in nanoscience and plasmonics, and highlighting collective contributions of key pioneers.

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RNA-binding proteins shape biology through their widespread functions in RNA biochemistry. Their function requires the recognition of specific RNA motifs for targeted binding. These RNA binding elements can be composed of both unmodified and chemically modified RNAs, of which over 170 chemical modifications have been identified in biology.

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Syntactic processing and verbal working memory are both essential components to sentence comprehension. Nonetheless, the separability of these systems in the brain remains unclear. To address this issue, we performed causal-inference analyses based on lesion and connectome network mapping using MRI and behavioural testing in two groups of individuals with chronic post-stroke aphasia.

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Estimation of neighborhood scale PM impacts in rural towns in the Purepecha region of Mexico.

Environ Sci Atmos

December 2024

Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México (UNAM) Morelia Michoacán 58190 Mexico.

The impact of cooking with solid fuels on neighborhood-scale PM concentrations in rural towns and communities is poorly quantified due to the lack of credible ground-level monitoring sites and spatial heterogeneity at a scale that is below the resolution of remote sensing GEOS-Chem hybrid models. Emissions of PM from use of open fires for cooking in rural Mexico are known to cause poor indoor air quality. The effectiveness of different intervention strategies to reduce such pollution exposures also varies because of different local building densities and source intensities.

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Background: Successful nipple-areolar complex (NAC) reconstruction greatly influences patient outcomes for transgender patients undergoing chest masculinization. Despite the recent rise in case volume, little is known on designing the ideal NAC that maintains its aesthetics in dynamic settings. This study aimed to examine the characteristics of male NACs and their dimensional variability to help develop guidelines on designing the neo-NAC.

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Head-mounted devices (HMDs) are wearable electronic tools designed to augment the visual experience of low-vision patients who have a decrease in vision not improved by refractive correction. They do so by addressing various principles of visual enhancement, including magnification, illumination, increased field of view, and contrast sensitivity enhancement, among others. Since the introduction of the first HMD 3 decades ago, advancements in technology have made these devices more lightweight and practical for everyday use.

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Generative adversarial collaborations: a new model of scientific discourse.

Trends Cogn Sci

December 2024

Department of Cognitive Sciences, University of California Irvine, Irvine, CA, USA; Program in Brain, Mind, and Consciousness, Canadian Institute of Advanced Research, Toronto, Ontario, Canada. Electronic address:

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